Circe has developed a gas fermentation platform that converts carbon dioxide, water, and electricity into nature-identical organic molecules, enabling the production of essential products across various industries. This process not only achieves price parity with traditional methods but also removes 3 kilograms of CO₂ for every kilogram of product generated, addressing the urgent need for sustainable manufacturing solutions.
Funding
$17M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.

Founders
Product
Problem
Traditional manufacturing processes rely heavily on fossil fuels and resource extraction, contributing significantly to carbon emissions and environmental degradation. These methods often lack sustainability and struggle to meet the growing demand for eco-friendly products.
Solution
Circe has developed a gas fermentation platform that converts carbon dioxide, water, and electricity into nature-identical organic molecules, providing a sustainable alternative to conventional manufacturing. The platform utilizes point-source carbon emissions as a feedstock, effectively removing 3 kilograms of CO₂ for every kilogram of product generated. This process achieves price parity with traditional methods while producing drop-in equivalents of essential ingredients used across various industries. Circe's modular platform offers versatility and can be applied to food and chemical manufacturing, as well as sustainable fuel production.
Target Audience
Circe's primary customers are manufacturers in the food, chemical, and fuel industries seeking sustainable and cost-effective alternatives to traditional production methods.
Features
- Proprietary gas fermentation process using CO₂ as a primary feedstock
- Production of nature-identical molecules that are drop-in equivalents for existing ingredients
- Modular platform adaptable to various industries, including food, chemicals, and fuels
- Carbon-negative production, removing 3 kg of CO₂ per 1 kg of product
- Price parity with traditional manufacturing methods
- Pilot plant operations for industrial-scale production of carbon-negative molecules